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37.5*4分之3加8分之5*75 用简便方法计算

75乘74分之5 =(74+1)乘74分之5 =74乘74分之5+1乘74分之5 =5+74分...

=75×(57-37) =75×2 =15

原式 =3/4x3/8+0.75+62.5%x75% =0.75x0.375+0.75+0.62...

可以利用乘法分配律进行简便运算: 27.5×3.7-75×0.37 =27.5×3.7-7.5×3....

4.3*75-7.5*33 =7.5*43-7.5*33 =7.5*(43-33) =7.5*...

3/8x×1/5=75 3/40x=75 x=75÷3/40 x=1000

27.5✘3.7-75✘0.37简便计算 27.5x3....

=75×4×5 =300×5 =1500

5/23x(3/4+2/5)÷75% =5/23x23/20÷3/4 =1/4÷3/4 =1/...

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